Mechanical properties of polypropylene mesh used in pelvic floor repair

Afonso, J. S.; Martins, Pedro; Girão, M. J. B. C.; Jorge, R.M. Natal; Ferreira, A.J.M.; Mascarenhas, Teresa; Fernandes, A. A.; Bernardes, João; Baracat, E C; Lima, Geraldo Rodrigues de; Patrı́cio, Belmiro

doi:10.1007/s00192-007-0518-2

Cited by 15 publications

(28 citation statements)

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“…The connection between the gelatine and SD is stronger than the tensile strength of the used ballistic gelatine. The isolated GC has been tested to be ∼10 times stronger11 with a load at failure of 73.5 ± 11.8 N, so that the failure is not expected in the mesh itself.…”

Section: Resultsmentioning

confidence: 99%

“…Keeping MiniSlings in place and getting some tension on the sling is essential for their success rate. Tests of failure loads and mechanical behaviour of different types of meshes do not include the intertaction neither with the anchors nor with the tissue 11–14. The failure load of the meshes themselves is of little interest since the pull‐out strength is a matter of the bonding or of the tissue strength after an ingrowth.…”

Section: Introductionmentioning

confidence: 99%

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New measurements to compare soft tissue anchoring systems in pelvic floor surgery

et al. 2012

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Suburethral slings as well as different meshes are widely used treating stress urinary incontinence and prolaps in women. With the development of MiniSlings and special meshes using less alloplastic material anchorage systems become more important to keep devices in place and to put some tension especially on the MiniSlings. To date, there are many different systems of MiniSlings of different companies on the market which differ in the structure of the used meshes and anchors. A new objective measurement method to compare different properties of MiniSling systems (mesh and anchor) is presented in this article. Ballistic gelatine acts as soft tissue surrogate. Significant differences in parameters like pull-out strength of anchors or shrinkage of meshes under loading conditions have been determined. The form and size of the anchors as well as the structural stability of the meshes are decisive for a proper integration. The tested anchorings sytems showed markedly different mechanical function at their respective load bearing capacity. As the stable fixation of the device in tissue is a prerequisite for a permanet reinforcement, the proposed test system permits further optimisation of anchor and mesh devices to improve the success of the surgical treatment.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

New measurements to compare soft tissue anchoring systems in pelvic floor surgery

et al. 2012

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“…Despite the existence of several models for assessing different meshes with regard to their particular biomechanical characteristics, there are currently nearly no standardized tools for comparison among meshes. 3,4 With regard to this weak point, in a previous study, we developed a tissue culture in vitro test system for the evaluation of biocompatibility of alloplastic materials (meshes). 5 On that basis, we established a scoring systems for in vitro biocompatibility features.…”

Section: Introductionmentioning

confidence: 99%

IDEAL in Meshes for Prolapse, Urinary Incontinence, and Hernia Repair

Gerullis

Klosterhalfen²,

Boros

et al. 2013

Surg Innov

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“…The mechanical properties of these slings varied significantly [31] but there is no unequivocal agreement regarding the best material [32]. A number of poor quality slings have been implanted into women with SUI and caused severe complications in the past years.…”

Section: Discussionmentioning

confidence: 99%

The Single-Incision Sling to Treat Female Stress Urinary Incontinence: A Dynamic Computational Study of Outcomes and Risk Factors

Peng

Khavari

Nakib

et al. 2015

Journal of Biomechanical Engineering

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Dynamic behaviors of the single-incision sling (SIS) to correct urethral hypermobility are investigated via dynamic biomechanical analysis using a computational model of the female pelvis, developed from a female subject's high-resolution magnetic resonance (MR) images. The urethral hypermobility is simulated by weakening the levator ani muscle in the pelvic model. Four positions along the posterior urethra (proximal, midproximal, middle, and mid-distal) were considered for sling implantation. The a-angle, urethral excursion angle, and sling-urethra interaction force generated during Valsalva maneuver were quantitatively characterized to evaluate the effect of the sling implantation position on treatment outcomes and potential complications. Results show concern for overcorrection with a sling implanted at the bladder neck, based on a relatively larger sling-urethra interaction force of 1.77 N at the proximal implantation position (compared with 0.25 N at mid-distal implantation position). A sling implanted at the mid-distal urethral location provided sufficient correction (urethral excursion angle of 23.8 deg after mid-distal sling implantation versus 24.4 deg in the intact case) with minimal risk of overtightening and represents the optimal choice for sling surgery. This study represents the first effort utilizing a comprehensive pelvic model to investigate the performance of an implanted sling to correct urethral hypermobility. The computational modeling approach presented in the study can also be used to advance presurgery planning, sling product design, and to enhance our understanding of various surgical risk factors which are difficult to obtain in clinical practice.

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Mechanical properties of polypropylene mesh used in pelvic floor repair

Cited by 15 publications

References 0 publications

New measurements to compare soft tissue anchoring systems in pelvic floor surgery

New measurements to compare soft tissue anchoring systems in pelvic floor surgery

IDEAL in Meshes for Prolapse, Urinary Incontinence, and Hernia Repair

The Single-Incision Sling to Treat Female Stress Urinary Incontinence: A Dynamic Computational Study of Outcomes and Risk Factors

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